welcome
I definitely find this place to be great support, and i'm sure you will too
we're a similar age too (i'm 24) and i think it's definitely a bit of a challenge to be outgoing and positive while sober, especially when so many our age are using in a casual, more 'normal' way. but one thing that's helping me is to see how 'fake' those feelings are when drunk/high and keeping focussed on how nice it will be to experience these real true happy and contented feelings sober (though i still have a way to go!)
the improvements are gradual but rewarding,
i'm glad you're here!!